This is my BIAB setup that I mash in a cooler. I was aiming for something compact and easy to clean. I pump strike water from the pot to the cooler then gravity feed my runnings to the kettle (with the bag still in the cooler - no lifting involved). I don't bother with a mashout or sparge as I can hit 78% mash efficiency without either. The stand collapses and sets up in about 20 seconds.
Please tell me you have a link to that giant bag you use for mashing...that'd save me so much time cleaning up! Not to mention reduce tannins from the grain!